空口协议栈中,IP头压缩功能位于()层。
A.PHY
B.RRC
C.RLC
D.PDCP
参考答案:D
Not until he went through real hardship ______ the love we have for our families is important.
A.did he realize
B.had he realized
C.he realized
D.he had realized
下列不属于在“共同富裕”的理念下制定的政策的是()?
A.西部大开发
B.南水北调
C.西气东输
D.计划生育